DE102009043472A1 - Introduction system for positioning sponge drainage in intestinal lumen or hollow organ or visceral cavity or tissue abscess, comprises guide wire and drainage hose which is connected to polyurethane sponge that comprises positioning bush - Google Patents

Abstract

The introduction system comprises a guide wire (5) and a drainage hose (1) which is connected to a polyurethane sponge (4) that comprises a positioning bush (2) in a guiding bush (3). The polyurethane sponge comprises X-ray markings, such that the X-rays control the positioning of the sponge drainage.

Description

General state of the art

Through the insert a drainage connected with an open-pored polyurethane sponge can treat internal wounds in a postoperative anastomotic insufficiency in the rectum. The drainage is placed under suction, it removes the wound secretion, leads to Wundverklebung and healing.

Due to the previously available delivery system, only wounds close to the body can be treated.

The advantages to be achieved by the invention lie in the deeper positioning of a sponge drainage and the resulting extended indication of the vacuum sponge therapy. The sponge system can be inserted with the invention in the esophagus, stomach, duodenum, large intestine and in all body cavities or wound cavities that can be achieved with an endoscope.

By positioning in a gut lumen, a complete closure of the same can be achieved. At the same time, drainage and internal closure of internal wounds can take place and these can be healed as a result.

An oesophageal perforation may be performed endoscopically by the use of a covered self-expanding stent. This is introduced with an insertion system via a previously inserted endoscopically guide wire over the defect and seal it from the inside. For this purpose, a wound drainage inserted from the outside is necessary.

With the invention, the delivery system is also positioned via an endoscopically inserted guidewire and an open-pore polyurethane sponge, which is connected to a drain, inserted over the perforation defect of the esophagus. The drainage is placed under a vacuum with a vacuum pump. As a result, the esophageal lumen collapses over the sponge, the defect is closed and wound secretions are drained at the same time. The advantage of this method compared to the stent system is the drainage of the wound secretion inwards and the drainage via the drainage by the suction effect in the direction of the intestinal lumen. This is particularly effective on organs that are naturally under a negative pressure (organs in the chest cavity) or wounds and wound cavities that are in contact with the chest cavity and are hereby physiologically under a negative pressure. The vacuum suction applied to the open-pored polyurethane sponge via the drainage allows the wound secretion to drain through the drainage and is not drawn along the physiological pressure gradient and respiratory movements towards the thorax.

The invention will be explained with reference to the drawings after construction and handling.

1 is a representation showing the arrangement of the complete delivery system. At the distal end of the guide sleeve ( 3 ) is the compressed sponge ( 4 ), with the drainage ( 1 ) is included. About the drainage ( 1 ) is a positioning sleeve ( 2 ) also inserted into the guide sleeve, it is both against the guide sleeve and the drain displaced. In the drainage the guidewire ( 5 ) one.

This guidewire is initially placed endoscopically over a defect, then the entire delivery system can be pushed over the wire into position. The sponge has a Röngtenstrahlen dense marking, so that under X-ray control positioning can be made and controlled.

2 shows the beginning of release of the sponge ( 4 ), the positioning sleeve ( 2 ) and the guide sleeve ( 3 ) are shifted against each other, so that the sponge emerges from the distal end of the guide sleeve.

3 shows a progressive release of the sponge.

4 shows a complete sponge release.

5 shows the liberated sponge after removal of the guide sleeve, positioning sleeve and guidewire.

6 shows a cross section through the release system with released sponge, 6 denotes the perforation openings of the drainage in the sponge.

7 shows a cross section through the delivery system with in the distal end of the guide sleeve ( 3 ) compressed sponge ( 4 ).

Claims (1)

An introducer system for positioning a sponge drainage in an intestinal lumen, a hollow organ, a body cavity or a tissue septum, the system comprising: A guidewire ( 5 ), - one with a drainage tube ( 1 ) bonded polyurethane sponge ( 4 ), which with a - Positionierungshülse ( 2 ) in a - guide sleeve ( 3 ), wherein the polyurethane sponge has an X-ray mark.

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